
interface Ieat{
    public static final int a = 1;
    public abstract void eat();
}
abstract class Animal{
    public String name;
    public int age;

    public Animal(String name, int age) {
        this.name = name;
        this.age = age;
    }

}

class Cat extends Animal implements Ieat{
    public Cat(String name, int age) {
        super(name, age);
    }
    @Override
    public void eat() {
        System.out.println("吃猫粮...");
    }
}
public class Text {
    public static void main(String[] args) {

    }
}
